Multi-rail exerciser



FIG. 1 is a perspective view of the new design for a multi-rail exerciser;

FIG. 2 is an enlarged front view thereof;

FIG. 3 is an enlarged rear view thereof;

FIG. 4 is an enlarged right side view thereof;

FIG. 5 is an enlarged left side view thereof;

FIG. 6 is an enlarged top view thereof; and,

FIG. 7 is an enlarged bottom view thereof.

The broken lines in the drawings are for the purpose of illustrating portions of the multi-rail exerciser that form no part of the claim. 

CLAIM The ornamental design for a multi-rail exerciser, as shown and described. 